1.3 Beam with tightener

Verification of the LIRA-FEM software / 1.3 Beam with tightener / Analytical solution: M. Laredo, Résistance des matériaux, Paris, Dunod, 1970, p. 77.



Analytical solution: M. Laredo, Résistance des matériaux, Paris, Dunod, 1970, p. 77.

Geometry:
AD, DF, FB: = 0.01516 2; r = A/2.5; I = 2.174 x 10-4 4.
AC, DC, CE, FE, EB: 1 = 2 = 4.5 x 10-3 2; 3 = 3.48 x 10-3 2.
= 2 ; b = 4 ; l = 8 ; = 0.6 ; d = 2.088 .

Material characteristics: Isotropic elastic, =2.1 1011 , G=0.4 x .

Boundary conditions: uA = vA = 0; vB = 0.

Stresses:


p = -50000/.
The tightening is tightened on the
δ = 6.52 x 10-3 .

CALCULATION RESULTS:

Point

The desired value

Analytical solution

Calculation results (LIRA)

Uncertainty,%

Longitudinal force,

584584

584584

0

Moment ,

49249,5

49249,5

0

D

Moving vD,

-0,0005428

-0,0005428

0

Preview image: Array

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